#include "go_asm.h"
#include "textflag.h"

TEXT ·Compare(SB),NOSPLIT,$0-28
	MOVL	a_base+0(FP), SI
	MOVL	a_len+4(FP), BX
	MOVL	b_base+12(FP), DI
	MOVL	b_len+16(FP), DX
	LEAL	ret+24(FP), AX
	JMP	cmpbody<>(SB)

TEXT runtime·cmpstring(SB),NOSPLIT,$0-20
	MOVL	a_base+0(FP), SI
	MOVL	a_len+4(FP), BX
	MOVL	b_base+8(FP), DI
	MOVL	b_len+12(FP), DX
	LEAL	ret+16(FP), AX
	JMP	cmpbody<>(SB)

// input:
//   SI = a

	MOVL	val+4(FP), CX
casloop:
	MOVL 	CX, DX
	MOVL	(BX), AX
	ORL	AX, DX
	LOCK
	CMPXCHGL	DX, (BX)
	JNZ casloop
	MOVL 	AX, ret+8(FP)
	RET

// func And64(addr *uint64, v uint64) old uint64
TEXT ·And64(SB), NOSPLIT, $0-20
	MOVL	ptr+0(FP), BP
	// DI:SI = v
	MOVL	val_lo+4(FP), SI
	MOVL	val_hi+8(FP), DI
	// DX:AX = *addr
	MOVL	0(BP), AX
	MOVL	4(BP), DX
casloop:

	// switch to g0
	get_tls(CX)
	MOVL	DX, g(CX)
	MOVL	(g_sched+gobuf_sp)(DX), BX
	MOVL	BX, SP

	// call target function
	MOVL	DI, DX
	MOVL	0(DI), DI
	CALL	DI

	// switch back to g
	get_tls(CX)
	MOVL	g(CX), AX
	MOVL	g_m(AX), BX
	MOVL	m_curg(BX), AX
	MOVL	AX, g(CX)
	MOVL	(g_sched+gobuf_sp)(AX), SP
	MOVL	$0, (g_sched+gobuf_sp)(AX)
	RET

noswitch:

#include "textflag.h"

TEXT ·IndexByte(SB),NOSPLIT,$0-20
	MOVL	b_base+0(FP), SI
	MOVL	b_len+4(FP), CX
	MOVB	c+12(FP), AL
	MOVL	SI, DI
	CLD; REPN; SCASB
	JZ 3(PC)
	MOVL	$-1, ret+16(FP)
	RET
	SUBL	SI, DI
	SUBL	$1, DI
	MOVL	DI, ret+16(FP)
	RET

TEXT ·IndexByteString(SB),NOSPLIT,$0-16
	MOVL	s_base+0(FP), SI
	MOVL	s_len+4(FP), CX
	MOVB	c+8(FP), AL
	MOVL	SI, DI
	CLD; REPN; SCASB
	JZ 3(PC)
	MOVL	$-1, ret+12(FP)

	ADDL	$4, SI
	MOVL	CX, (DI)
	ADDL	$4, DI

	MOVL	(SI), CX
	ADDL	$4, SI
	MOVL	CX, (DI)
	ADDL	$4, DI

	MOVL	(SI), CX
	ADDL	$4, SI
	MOVL	CX, (DI)
	ADDL	$4, DI

	MOVL	(SI), CX
	ADDL	$4, SI
	MOVL	CX, (DI)
	ADDL	$4, DI

	MOVL	(SI), CX
	ADDL	$4, SI
	MOVL	CX, (DI)
	ADDL	$4, DI

	MOVL	(SI), CX
	ADDL	$4, SI
	MOVL	CX, (DI)
	ADDL	$4, DI

	MOVW	AX, (DI)
	MOVB	AX, 2(DI)
	RET
_4:
	// We need a separate case for 4 to make sure we clear pointers atomically.
	MOVL	AX, (DI)
	RET
_5through8:
	MOVL	AX, (DI)
	MOVL	AX, -4(DI)(BX*1)
	RET
_9through16:
	MOVL	AX, (DI)
	MOVL	AX, 4(DI)
	MOVL	AX, -8(DI)(BX*1)
	MOVL	AX, -4(DI)(BX*1)

TEXT ·addVV(SB),NOSPLIT,$0
	MOVL z+0(FP), DI
	MOVL x+12(FP), SI
	MOVL y+24(FP), CX
	MOVL z_len+4(FP), BP
	MOVL $0, BX		// i = 0
	MOVL $0, DX		// c = 0
	JMP E1

L1:	MOVL (SI)(BX*4), AX
	ADDL DX, DX		// restore CF
	ADCL (CX)(BX*4), AX
	SBBL DX, DX		// save CF
	MOVL AX, (DI)(BX*4)
	ADDL $1, BX		// i++

E1:	CMPL BX, BP		// i < n
	JL L1

	NEGL DX
	MOVL DX, c+36(FP)
	RET

	INT	$0x80
	MOVL	AX, ret+12(FP)
	RET

TEXT runtime·sigfwd(SB),NOSPLIT,$12-16
	MOVL	fn+0(FP), AX
	MOVL	sig+4(FP), BX
	MOVL	info+8(FP), CX
	MOVL	ctx+12(FP), DX
	MOVL	SP, SI
	SUBL	$32, SP
	ANDL	$~15, SP	// align stack: handler might be a C function
	MOVL	BX, 0(SP)
	MOVL	CX, 4(SP)
	MOVL	DX, 8(SP)
	MOVL	SI, 12(SP)	// save SI: handler might be a Go function
	CALL	AX
	MOVL	12(SP), AX
	MOVL	AX, SP
	RET

	RET
move_5through8:
	MOVL	(SI), AX
	MOVL	-4(SI)(BX*1), CX
	MOVL	AX, (DI)
	MOVL	CX, -4(DI)(BX*1)
	RET
move_9through16:
	MOVL	(SI), AX
	MOVL	4(SI), CX
	MOVL	-8(SI)(BX*1), DX
	MOVL	-4(SI)(BX*1), BP
	MOVL	AX, (DI)
	MOVL	CX, 4(DI)
	MOVL	DX, -8(DI)(BX*1)
	MOVL	BP, -4(DI)(BX*1)

#include "go_asm.h"
#include "textflag.h"

TEXT ·asyncPreempt(SB),NOSPLIT|NOFRAME,$0-0
	PUSHFL
	ADJSP $156
	NOP SP
	MOVL AX, 0(SP)
	MOVL CX, 4(SP)
	MOVL DX, 8(SP)
	MOVL BX, 12(SP)
	MOVL BP, 16(SP)
	MOVL SI, 20(SP)
	MOVL DI, 24(SP)
	#ifndef GO386_softfloat
	MOVUPS X0, 28(SP)
	MOVUPS X1, 44(SP)
	MOVUPS X2, 60(SP)
	MOVUPS X3, 76(SP)
	MOVUPS X4, 92(SP)
	MOVUPS X5, 108(SP)